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Finding the Fourth Proportional to 339,256.08, 508,826.52 and 89,963.28

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Solution

The fourth proportional to 339,256.08, 508,826.52 and 89,963.28 is: 134,929.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    339,256.08 : 508,826.52 = 89,963.28 : x
  2. Step 2: Convert to fraction form
    339,256.08/508,826.52 = 89,963.28/x
  3. Step 3: Cross multiply
    339,256.08x = 508,826.52 × 89,963.28
  4. Step 4: Simplify right side
    339,256.08x = 45,775,702,690.19
  5. Step 5: Solve for x
    x = 45,775,702,690.19/339,256.08
  6. Step 6: Final answer
    x = 134,929.65

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.